The Exocoetidae are a family of marine ray-finned fish in the order Beloniformes, known colloquially as flying fish or flying cod. About 64 species are grouped in seven genera. While they cannot fly in the same way a bird does, flying fish can make powerful, self-propelled leaps out of the water where their long wing-like fins enable gliding for considerable distances above the water’s surface. The main reason for this behavior is thought to be to escape from underwater predators,[3][4][5] which include swordfish, mackerel, tuna, and marlin, among others,[6] though their periods of flight expose them to attack by avian predators such as frigate birds.